PEQMOD (Primitive EQuation Model)

The Primitive EQuation Model is a simple mechanistic 3--D primitive atmospheric circulation equation model which uses pressure coordinates. This model assumes that the planetary surface is essentially smooth and that there is sufficient drag acting near the lower boundary to make the details of the lower boundary conditions (which are very difficult to apply in pressure coordinates) unimportant. The pressure levels, level thicknesses, and zonal and meridional resolution are easily modified. Almost no physical parameterizations are included except for simple forms of scale selective damping and Newtonian/Rayleigh friction. A manual is included in TeX format.